B10R2040-300 IMO RCD 10KA, 300mA 1 Pole + N, 40 Amp, 230VAC

B10R2040-300 IMO RCD 10KA, 300mA 1 Pole + N, 40 Amp, 230VAC

SKU: B10R2040-300Alt SKU: B10R2040300MPN: B10R2040-300
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Why Choose the IMO B10R2040-300 Residual Current Device?

The IMO B10R2040-300 is a reliable Type AC Residual Current Device (RCD/RCCB) designed to protect single-phase electrical installations against earth leakage faults. Manufactured by IMO Precision Controls, it forms part of the trusted B10R RCCB series, providing dependable protection for industrial control panels, commercial installations and electrical distribution systems.

The device continuously monitors the current flowing through the live and neutral conductors. When an earth leakage current exceeds the rated residual operating current, the RCD disconnects the electrical supply, helping protect equipment and reducing the risk of electrical faults. Its 300 mA trip sensitivity makes it particularly suitable for fire protection and equipment protection applications rather than additional personal protection.

With a 40 A rated current, 300 mA residual operating current, 1 Pole + Neutral configuration and 230 V AC operation, the B10R2040-300 offers reliable earth leakage protection together with straightforward DIN rail installation.

Key Advantages

  • Reliable Type AC residual current protection for industrial and commercial electrical systems.
  • 40 A rated current for higher load circuits.
  • 300 mA residual operating current suitable for fire and equipment protection.
  • Type AC detection of alternating sinusoidal residual currents.
  • 10 kA conditional short-circuit rating.
  • Compact DIN rail mounting for quick installation.

Key Features

  • IMO B10R residual current device series.
  • 40 A rated operational current.
  • 300 mA rated residual operating current.
  • Type AC residual current characteristic.
  • 1 Pole + Neutral (2 Pole) configuration.
  • 230 V AC rated voltage.
  • 10 kA conditional short-circuit capacity.
  • DIN rail mounting to EN 60715.

Reliable Earth Leakage Protection

Residual current devices compare the current flowing through the live conductor with the current returning through the neutral conductor. When an imbalance caused by an earth fault is detected, the device disconnects the electrical supply to help protect equipment and installations from damage caused by leakage currents.

The 300 mA sensitivity of the IMO B10R2040-300 is commonly selected for fire protection and equipment protection applications. The device should always be installed alongside suitable overcurrent protection because it does not provide overload or short-circuit protection.

Typical Applications

  • Commercial electrical distribution boards.
  • Industrial control panels.
  • Machinery power distribution.
  • Fire protection circuits.
  • OEM electrical equipment.
  • General earth leakage protection.

Technical Specifications

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Voltage 230 V
Phase Single Phase
Poles 1-pole + N
Device Type RCD
Residual Current 300 mA
RCD Type Type AC
Manufacturer IMO Precision Controls
Series B10R
Model B10R2040-300
Alternative SKU B10R2040300
Product type Residual Current Device (RCD/RCCB)
Rated current 40 A
Rated residual operating current 300 mA
Residual current type Type AC
Pole configuration 1 Pole + Neutral (2 Pole)
Rated voltage 230 V AC
Frequency 50 / 60 Hz
Conditional short-circuit rating 10 kA
Mounting type DIN rail
Protection rating IP20
Standard IEC 61008-1
Barcode 5056207442780
HS Code 8536201090
Country of Manufacture China

Frequently Asked Questions

What is the IMO B10R2040-300 used for?

The B10R2040-300 provides earth leakage protection by disconnecting electrical circuits when residual current faults are detected.

What is the current rating of this RCD?

The IMO B10R2040-300 has a rated operational current of 40 A.

What residual current sensitivity does it provide?

This model has a 300 mA rated residual operating current, making it suitable for equipment and fire protection applications.

What type of residual current does it detect?

The device is a Type AC RCD designed to detect alternating sinusoidal residual currents.

Does this RCD provide overload protection?

No. The B10R2040-300 provides residual current protection only and should be installed with a suitably rated circuit breaker or fuse for overload and short-circuit protection.

Trusted Electrical Protection from IMO

IMO B10R residual current devices are trusted by electrical contractors, panel builders and industrial engineers for dependable earth leakage protection and long-term reliability in commercial and industrial electrical installations.